* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Open Sans',sans-serif;
}
body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #000;
}
.square{
    position: relative;
    width: 400px;
    height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
}
.square span:nth-child(1) {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 2px solid #fff;
    border-radius: 36% 62% 63% 37% / 41% 44% 56% 59%;
    transition: 0.5s;
    animation: animate 6s linear infinite;
}
.square:hover span:nth-child(1){
    border: none;
    background: rgba(0,0,255,0.8);
}
.square span:nth-child(2) {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 2px solid #fff;
    border-radius: 36% 62% 63% 37% / 41% 44% 56% 59%;
    transition: 0.5s;
    animation: animate 4s linear infinite;
}
.square:hover span:nth-child(2){
    border: none;
    background: rgba(0,0,255,0.8);
}
.square span:nth-child(3) {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 2px solid #fff;
    border-radius: 36% 62% 63% 37% / 41% 44% 56% 59%;
    transition: 0.5s;
    animation: animate2 10s linear infinite;
}
.square:hover span:nth-child(3){
    border: none;
    background: rgba(0,0,255,0.8);
}
@keyframes animate {
    0%{
        transform: rotate(0deg);
    }
    100%{
        transform: rotate(360deg);
    }
}
@keyframes animate2 {
    0%{
        transform: rotate(360deg);
    }
    100%{
        transform: rotate(0deg);
    }
}
.content{
    position: relative;
    padding: 40px 60px;
    color: #fff;
    text-align: center;
    transition: 0.5s;
    z-index: 1000;
}
.content a {
    position: relative;
    display: inline-block;
    margin-top: 10px;
    border: 2px solid #fff;
    padding: 6px 18px;
    text-decoration: none;
    color: #fff;
    font-weight: 600;
    border-radius: 73% 27% 44% 56% / 49% 44% 45% 56% 51%;
}
.content a:hover {
    background: #fff;
    color: #333;
}